skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Correction of I/Q channel errors without calibration

Abstract

A method of providing a balanced demodular output for a signal such as a Doppler radar having an analog pulsed input; includes adding a variable phase shift as a function of time to the input signal, applying the phase shifted input signal to a demodulator; and generating a baseband signal from the input signal. The baseband signal is low-pass filtered and converted to a digital output signal. By removing the variable phase shift from the digital output signal, a complex data output is formed that is representative of the output of a balanced demodulator.

Inventors:
 [1];  [1]
  1. (Albuquerque, NM)
Publication Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
874829
Patent Number(s):
US 6469661
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
correction; iq; channel; errors; calibration; method; providing; balanced; demodular; output; signal; doppler; radar; analog; pulsed; input; adding; variable; phase; shift; function; time; applying; shifted; demodulator; generating; baseband; low-pass; filtered; converted; digital; removing; complex; data; formed; representative; output signal; input signal; phase shift; pass filter; /342/375/

Citation Formats

Doerry, Armin W., and Tise, Bertice L. Correction of I/Q channel errors without calibration. United States: N. p., 2002. Web.
Doerry, Armin W., & Tise, Bertice L. Correction of I/Q channel errors without calibration. United States.
Doerry, Armin W., and Tise, Bertice L. Tue . "Correction of I/Q channel errors without calibration". United States. doi:. https://www.osti.gov/servlets/purl/874829.
@article{osti_874829,
title = {Correction of I/Q channel errors without calibration},
author = {Doerry, Armin W. and Tise, Bertice L.},
abstractNote = {A method of providing a balanced demodular output for a signal such as a Doppler radar having an analog pulsed input; includes adding a variable phase shift as a function of time to the input signal, applying the phase shifted input signal to a demodulator; and generating a baseband signal from the input signal. The baseband signal is low-pass filtered and converted to a digital output signal. By removing the variable phase shift from the digital output signal, a complex data output is formed that is representative of the output of a balanced demodulator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}

Patent:

Save / Share: